Scilab Function

size - size of objects

Calling Sequence

y=size(x [,sel])
[nr,nc]=size(x)

Parameters

Description

  • Applied to : a matrix (constant, polynomial, string, boolean, rational) x, with only one lhs argument size returns a 1x2 vector [number of rows, number of columns]. Called with LHS=2, returns nr,nc = [number of rows, number of columns]. sel may be used to specify what dimension to get:
  • 1 or 'r' : to get the number of rows
  • 2 or 'c' : to get the number of columns
  • '*' : to get the product of rows and column numbers
  • Applied to: a list it returns the number of elements. In this case only y=size(x) syntax can be used
  • Applied to: a linear system, y=size(x) returns in y the (row) vector [number of outputs, number if inputs] i.e. the dimension of the corresponding transfer matrix. The syntax [nr,nc]=size(x) is also valid (with (nr,nc)=(y(1),y(2)). If x is a linear system in state-space form, then [nr,nc,nx]=size(x) returns in addition the dimension nx of the A matrix of x.
  • Applied to: an hypermatrix y=size(x) returns the vector of hypermatrix dimensions. [n1,n2,...nn]=size(x) returns the hypermatrix dimensions. ni=size(x,i) returns the ith dimension and size(x,'*') returns the product of dimensions.
  • Examples

    See Also